The EVF optical module is one of the most essential innovations in modern imaging technology. Short for Electronic Viewfinder, this module integrates advanced optics and microdisplays to provide photographers and videographers with a real-time, high-resolution view of their subject. Unlike traditional optical viewfinders, EVF modules offer digital accuracy, allowing users to preview exposure,...

In the world of optical metrology and display testing, the conoscope lens stands as a core technology for analyzing light distribution and angular characteristics with extreme accuracy. These lenses are specifically designed to measure viewing angles, brightness uniformity, and polarization in display panels, optical components, and photonic materials. In this article, I will explain how...